One of the best things when backpacking is taking off your boots after hiking all day. The problem is when you get to camp your on dirt with sharp rocks and you don’t want to go barefoot. Its probably a bit cold out to go barefoot as well. Well I never go hiking without a pair of Crocs! That’s right those ugly foam sandals. I don’t actually have a “Crocs” brand as they are ridiculously expensive for some foam. A cheap pair of foam clogs will work I picked mine up at Fred Meyer for about $7. These sandals are supper light 7.75 ounces for mine, and best of all you can wear socks with them to keep your feet toasty warm. I always have them clipped to the outside of my pack or run a pack strap through the heal loop. This keeps them out and easy to get to for short rest when you wan to dry your feet and boots out or for stream crossings. Here in Washington our streams can be very cold as most are direct snow run off or glacier run off. Having a sandal that keeps your feet away from sharp rocks is very nice when crossing streams.
You can find these at Fred Meyer, Walmart, K-Mart, Shopko, or a Discount shoe stores for about $6-$10.